Gear-shifting mechanism



Feb. 27, 1923.

A T! BROWN E R .SHLF IN ECHAN Filed July 15 ,4 mm rs INVENTOI? Patented Feb. 27, 1923.

- UNITE -AL'EXANDER; T; BROWN, or sYnAousn, nnwro'n'n, assienoaro"Bnow mLIPn GEAR 4 ooMrAivY, orsYaAoUsE; NEW YORK, n CORPORATION on NEW YORK.

. oEAn-snIr rtNG Minoi-iANfs-Nfi I Application filed July To all iii/win itm'iryjoo iwernr cation.

Be it known that I, ALE ANDERT. BROWN, a citizen of the-United States, anc l', a resi dent of Syracus'minfthe county of Onondaga and Stateof New York,'have invented a certain new and useful Gear shi'fting Mechanism, of which the followingfis a specifi- -This inventionprelates to shifting mechanism for transmissiongearing of'motor vehicles'f which mechanism is particularly simple in construction and highly efficient in use, and it consists in the novel'feat'ures and in the combinations and constructions hereinafter set forth and claimed.-

Indesciibin'g this invention, referencelis had to the accompanying drawings in which like characters designate corresponding parts in all the views. V

Figure 1 is a side elevation of this shift-- ing mechanism, the contiguous part of the body of a motor vehicle being shown in section, and also the contiguous portion of a gear box being shown.

Figure 2 is an enlarged transverse sectional view, partly in elevation, taken on the plane of line 22, Fig. 1.

.Figure 3 is a plan view of the guide 7 plate for the operating lever.

Figure 4t is a detail view of the operating lever showing the pivotal bearing therefor in section. I

Th1s gear shifting mechanism comprlses generally, .motion transmitting and multiplying members, and an operating lever hav mg selecting and lshlftin'g movements, the operating lever having means for selectively coacting with the said members. I

1 designates the mot1ontransm1tt1ng and multiplying members which are here shown as shifting levers pivoted between their ends, one arm' of each lever, as the lower arm, being connected to a shifting rod 2 a link 3 and'the other or upper arm l being provided with means for coacting with the selecting finger of the operating lever. In

the illustrated form of 'mvyinvention, the levers 1 are mounted on a shaft 5 supported in bracketsfi which are mounted upon a cross bar 7 of the frame 8 of a motor vehicle. v 9 designates the operating lever which is mounted on a shaft 10 and is provided with a selecting and shifting finger 11, the finger extending rearwardly from the lever and 1918. semi K01 143822 having an engagingdownturned end 12 for v coacting with the notches 13 in theupper' armstof the shifting levers 1. I

The lever 9 is here: shown as pivoted "at its lower end below the axis of the levers l and the finger 11 ends of the lever .9.

The lever 39 is mounted'upontheshaft 10: to shift about the axis of said shaftga'nd' also to have aflateral rockinggmoi fnent, the latter movement carrymgthe selecting as located be ween thev finger 11" laterally into and out of the notch,"

13 of'any ofthe' shifting levers 1, said.

lever 9 being movable about its axis to shift the leversoselected.

As. seen in Fig. 4, the lever 9 has a hubor bearing 14 on the shaft 10, the bearing 14 having inclined or outwardly diverging faces-'15'which meet-substantially centrallyof the hub in a, fulcrum 19, the faces15 diverging from the fulcrum so as to per- 111113 the lever to rock laterally on the shaft 10 about the fulcrum 19.

The end faces 20 of the hub or bearing are curved about a, center to coact with abutments 21 during the Selecting movement of the lever 9.

22 is a guide plate located near the floor 23 of the vehicle, and mountedat oneend on the base 24: of the bracket 7 and at its other end on -the floor 23 of the motor vehicle, the plate having suitable guide slots 25 anda cross over slot 26, for governing the shifting and theselecting movements of the lever The shifting rods 2 extend into the case 27 and coact with suitable shifting forks abutments or thrust bearings 21 which hold I the hub 20 from lateral'shifting movement" i at its lower end while the lever 9 is being shifted laterally, the faces 20 engaging'the v aswill' be understood by those skilled in the art. I I c v I Owing to the arrangement of the operatmultiplying levers, ample space is provided between the axis of the operating leverand the guide plate located close to the floor, and the movement of the operating lever ing lever and themotio'n: transmitting and p is increased through the. shifting "levers 1075 whereby the shiftingmovementis efi'ected upon a small movement of the operating lever.

' What r iaim is 1. In a gear shifting meohanisrn,-the com-1110 bination of motion transmitting members arranged in a row an operating lever having a selecting movement lengthwise ot' the row and an operating movement crosswise of the row, the lever having a finger projecting to-,

ward the 'row of members, substantially, as

and for the purpose described. 7

2. In a gear shifting mechanisimthe combination of a row of motion transmitting levers, an operating lever having a selecting movement lengthwise or" the row, and a shiftimg movement in the direction trans- 7 mg PlY'O CBCl below. the axis or the levers, the

verselyof the row, the operating lever bemotion transmitting levers having transversely extending notches, and the operating lever having a finger extending in the direction of movement 01"- such operating lever i -iaeeea and arranged to enter the notch of any one of the motion transmitting levers during the selecting movement of the operating lever.*

In a gear shifting mechanism, the com-1 bina-tlon or motion transmitt ng members arranged in a row, an operating lever hav mg a selecting movement lengthwise of the row and ashifting movement in a direction a transversely of'the row,'the lever being pivoted at its lower end below the row of members and having a forwardly extending finger above the row ofmembersfor selectively engaging any one of the membergthe portlon of the lever between the finger and theaxis of theoperatmg lever being-curved away from the row of members to provide space for the shifting movement of the operating lever toward the ro w'of members, substantially as and for the purpose specified. 7

V In testimony whereof, I have hereunto s1 'ned my name, at Syracuse, 1n the county 5th day of July, 1918. v

ALEXANDER T. BRo NQ of Onondaga, .and- State of New York, this 

